161002297 has 2 divisors, whose sum is σ = 161002298. Its totient is φ = 161002296.

The previous prime is 161002279. The next prime is 161002319. The reversal of 161002297 is 792200161.

It is a happy number.

161002297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (161002279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143496441 + 17505856 = 11979^2 + 4184^2 .

It is a cyclic number.

It is not a de Polignac number, because 161002297 - 2⁷ = 161002169 is a prime.

It is not a weakly prime, because it can be changed into another prime (161002697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80501148 + 80501149.

It is an arithmetic number, because the mean of its divisors is an integer number (80501149).

Almost surely, 2^161002297 is an apocalyptic number.

It is an amenable number.

161002297 is a deficient number, since it is larger than the sum of its proper divisors (1).

161002297 is an equidigital number, since it uses as much as digits as its factorization.

161002297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 161002297 is about 12688.6680546068. The cubic root of 161002297 is about 544.0147696844.

The spelling of 161002297 in words is "one hundred sixty-one million, two thousand, two hundred ninety-seven".